1. Department of Neurology, Xuan Wu Hospital, Capital Medical University, Beijing, China
2. Cell Therapy Center, Xuan Wu Hospital, Capital Medical University, and Key Laboratory of Neurodegeneration, Ministry of Education, Beijing, China
3. Department of Neurological Surgery, Wayne State University School of Medicine, Taylor, MI, USA
4. Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China